1 //===-- CommandObjectProcess.cpp --------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "CommandObjectProcess.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Interpreter/Args.h" 17 #include "lldb/Interpreter/Options.h" 18 #include "lldb/Core/State.h" 19 #include "lldb/Host/Host.h" 20 #include "lldb/Interpreter/CommandInterpreter.h" 21 #include "lldb/Interpreter/CommandReturnObject.h" 22 #include "lldb/Target/Platform.h" 23 #include "lldb/Target/Process.h" 24 #include "lldb/Target/Target.h" 25 #include "lldb/Target/Thread.h" 26 27 using namespace lldb; 28 using namespace lldb_private; 29 30 //------------------------------------------------------------------------- 31 // CommandObjectProcessLaunch 32 //------------------------------------------------------------------------- 33 #pragma mark CommandObjectProcessLaunch 34 class CommandObjectProcessLaunch : public CommandObjectParsed 35 { 36 public: 37 38 CommandObjectProcessLaunch (CommandInterpreter &interpreter) : 39 CommandObjectParsed (interpreter, 40 "process launch", 41 "Launch the executable in the debugger.", 42 NULL), 43 m_options (interpreter) 44 { 45 CommandArgumentEntry arg; 46 CommandArgumentData run_args_arg; 47 48 // Define the first (and only) variant of this arg. 49 run_args_arg.arg_type = eArgTypeRunArgs; 50 run_args_arg.arg_repetition = eArgRepeatOptional; 51 52 // There is only one variant this argument could be; put it into the argument entry. 53 arg.push_back (run_args_arg); 54 55 // Push the data for the first argument into the m_arguments vector. 56 m_arguments.push_back (arg); 57 } 58 59 60 ~CommandObjectProcessLaunch () 61 { 62 } 63 64 Options * 65 GetOptions () 66 { 67 return &m_options; 68 } 69 70 virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index) 71 { 72 // No repeat for "process launch"... 73 return ""; 74 } 75 76 protected: 77 bool 78 DoExecute (Args& launch_args, CommandReturnObject &result) 79 { 80 Debugger &debugger = m_interpreter.GetDebugger(); 81 Target *target = debugger.GetSelectedTarget().get(); 82 Error error; 83 84 if (target == NULL) 85 { 86 result.AppendError ("invalid target, create a debug target using the 'target create' command"); 87 result.SetStatus (eReturnStatusFailed); 88 return false; 89 } 90 // If our listener is NULL, users aren't allows to launch 91 char filename[PATH_MAX]; 92 const Module *exe_module = target->GetExecutableModulePointer(); 93 94 if (exe_module == NULL) 95 { 96 result.AppendError ("no file in target, create a debug target using the 'target create' command"); 97 result.SetStatus (eReturnStatusFailed); 98 return false; 99 } 100 101 exe_module->GetFileSpec().GetPath (filename, sizeof(filename)); 102 103 const bool add_exe_file_as_first_arg = true; 104 m_options.launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), add_exe_file_as_first_arg); 105 106 StateType state = eStateInvalid; 107 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 108 if (process) 109 { 110 state = process->GetState(); 111 112 if (process->IsAlive() && state != eStateConnected) 113 { 114 char message[1024]; 115 if (process->GetState() == eStateAttaching) 116 ::strncpy (message, "There is a pending attach, abort it and launch a new process?", sizeof(message)); 117 else 118 ::strncpy (message, "There is a running process, kill it and restart?", sizeof(message)); 119 120 if (!m_interpreter.Confirm (message, true)) 121 { 122 result.SetStatus (eReturnStatusFailed); 123 return false; 124 } 125 else 126 { 127 Error destroy_error (process->Destroy()); 128 if (destroy_error.Success()) 129 { 130 result.SetStatus (eReturnStatusSuccessFinishResult); 131 } 132 else 133 { 134 result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); 135 result.SetStatus (eReturnStatusFailed); 136 } 137 } 138 } 139 } 140 141 if (launch_args.GetArgumentCount() == 0) 142 { 143 const Args &process_args = target->GetRunArguments(); 144 if (process_args.GetArgumentCount() > 0) 145 m_options.launch_info.GetArguments().AppendArguments (process_args); 146 } 147 else 148 { 149 // Save the arguments for subsequent runs in the current target. 150 target->SetRunArguments (launch_args); 151 152 m_options.launch_info.GetArguments().AppendArguments (launch_args); 153 } 154 155 if (target->GetDisableASLR()) 156 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 157 158 if (target->GetDisableSTDIO()) 159 m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); 160 161 m_options.launch_info.GetFlags().Set (eLaunchFlagDebug); 162 163 Args environment; 164 target->GetEnvironmentAsArgs (environment); 165 if (environment.GetArgumentCount() > 0) 166 m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); 167 168 // Finalize the file actions, and if none were given, default to opening 169 // up a pseudo terminal 170 const bool default_to_use_pty = true; 171 m_options.launch_info.FinalizeFileActions (target, default_to_use_pty); 172 173 if (state == eStateConnected) 174 { 175 if (m_options.launch_info.GetFlags().Test (eLaunchFlagLaunchInTTY)) 176 { 177 result.AppendWarning("can't launch in tty when launching through a remote connection"); 178 m_options.launch_info.GetFlags().Clear (eLaunchFlagLaunchInTTY); 179 } 180 } 181 else 182 { 183 if (!m_options.launch_info.GetArchitecture().IsValid()) 184 m_options.launch_info.GetArchitecture() = target->GetArchitecture(); 185 186 PlatformSP platform_sp (target->GetPlatform()); 187 188 if (platform_sp && platform_sp->CanDebugProcess ()) 189 { 190 process = target->GetPlatform()->DebugProcess (m_options.launch_info, 191 debugger, 192 target, 193 debugger.GetListener(), 194 error).get(); 195 } 196 else 197 { 198 const char *plugin_name = m_options.launch_info.GetProcessPluginName(); 199 process = target->CreateProcess (debugger.GetListener(), plugin_name, NULL).get(); 200 if (process) 201 error = process->Launch (m_options.launch_info); 202 } 203 204 if (process == NULL) 205 { 206 result.SetError (error, "failed to launch or debug process"); 207 return false; 208 } 209 } 210 211 if (error.Success()) 212 { 213 const char *archname = exe_module->GetArchitecture().GetArchitectureName(); 214 215 result.AppendMessageWithFormat ("Process %llu launched: '%s' (%s)\n", process->GetID(), filename, archname); 216 result.SetDidChangeProcessState (true); 217 if (m_options.launch_info.GetFlags().Test(eLaunchFlagStopAtEntry) == false) 218 { 219 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 220 StateType state = process->WaitForProcessToStop (NULL); 221 222 if (state == eStateStopped) 223 { 224 error = process->Resume(); 225 if (error.Success()) 226 { 227 bool synchronous_execution = m_interpreter.GetSynchronous (); 228 if (synchronous_execution) 229 { 230 state = process->WaitForProcessToStop (NULL); 231 const bool must_be_alive = true; 232 if (!StateIsStoppedState(state, must_be_alive)) 233 { 234 result.AppendErrorWithFormat ("process isn't stopped: %s", StateAsCString(state)); 235 } 236 result.SetDidChangeProcessState (true); 237 result.SetStatus (eReturnStatusSuccessFinishResult); 238 } 239 else 240 { 241 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 242 } 243 } 244 else 245 { 246 result.AppendErrorWithFormat ("process resume at entry point failed: %s", error.AsCString()); 247 result.SetStatus (eReturnStatusFailed); 248 } 249 } 250 else 251 { 252 result.AppendErrorWithFormat ("initial process state wasn't stopped: %s", StateAsCString(state)); 253 result.SetStatus (eReturnStatusFailed); 254 } 255 } 256 } 257 else 258 { 259 result.AppendErrorWithFormat ("process launch failed: %s", error.AsCString()); 260 result.SetStatus (eReturnStatusFailed); 261 } 262 263 return result.Succeeded(); 264 } 265 266 protected: 267 ProcessLaunchCommandOptions m_options; 268 }; 269 270 271 //#define SET1 LLDB_OPT_SET_1 272 //#define SET2 LLDB_OPT_SET_2 273 //#define SET3 LLDB_OPT_SET_3 274 // 275 //OptionDefinition 276 //CommandObjectProcessLaunch::CommandOptions::g_option_table[] = 277 //{ 278 //{ SET1 | SET2 | SET3, false, "stop-at-entry", 's', no_argument, NULL, 0, eArgTypeNone, "Stop at the entry point of the program when launching a process."}, 279 //{ SET1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 280 //{ SET1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 281 //{ SET1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 282 //{ SET1 | SET2 | SET3, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 283 //{ SET2 , false, "tty", 't', optional_argument, NULL, 0, eArgTypePath, "Start the process in a terminal. If <path> is specified, look for a terminal whose name contains <path>, else start the process in a new terminal."}, 284 //{ SET3, false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 285 //{ SET1 | SET2 | SET3, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 286 //{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 287 //}; 288 // 289 //#undef SET1 290 //#undef SET2 291 //#undef SET3 292 293 //------------------------------------------------------------------------- 294 // CommandObjectProcessAttach 295 //------------------------------------------------------------------------- 296 #pragma mark CommandObjectProcessAttach 297 class CommandObjectProcessAttach : public CommandObjectParsed 298 { 299 public: 300 301 class CommandOptions : public Options 302 { 303 public: 304 305 CommandOptions (CommandInterpreter &interpreter) : 306 Options(interpreter) 307 { 308 // Keep default values of all options in one place: OptionParsingStarting () 309 OptionParsingStarting (); 310 } 311 312 ~CommandOptions () 313 { 314 } 315 316 Error 317 SetOptionValue (uint32_t option_idx, const char *option_arg) 318 { 319 Error error; 320 char short_option = (char) m_getopt_table[option_idx].val; 321 bool success = false; 322 switch (short_option) 323 { 324 case 'c': 325 attach_info.SetContinueOnceAttached(true); 326 break; 327 328 case 'p': 329 { 330 lldb::pid_t pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); 331 if (!success || pid == LLDB_INVALID_PROCESS_ID) 332 { 333 error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); 334 } 335 else 336 { 337 attach_info.SetProcessID (pid); 338 } 339 } 340 break; 341 342 case 'P': 343 attach_info.SetProcessPluginName (option_arg); 344 break; 345 346 case 'n': 347 attach_info.GetExecutableFile().SetFile(option_arg, false); 348 break; 349 350 case 'w': 351 attach_info.SetWaitForLaunch(true); 352 break; 353 354 case 'i': 355 attach_info.SetIgnoreExisting(false); 356 break; 357 358 default: 359 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 360 break; 361 } 362 return error; 363 } 364 365 void 366 OptionParsingStarting () 367 { 368 attach_info.Clear(); 369 } 370 371 const OptionDefinition* 372 GetDefinitions () 373 { 374 return g_option_table; 375 } 376 377 virtual bool 378 HandleOptionArgumentCompletion (Args &input, 379 int cursor_index, 380 int char_pos, 381 OptionElementVector &opt_element_vector, 382 int opt_element_index, 383 int match_start_point, 384 int max_return_elements, 385 bool &word_complete, 386 StringList &matches) 387 { 388 int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; 389 int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; 390 391 // We are only completing the name option for now... 392 393 const OptionDefinition *opt_defs = GetDefinitions(); 394 if (opt_defs[opt_defs_index].short_option == 'n') 395 { 396 // Are we in the name? 397 398 // Look to see if there is a -P argument provided, and if so use that plugin, otherwise 399 // use the default plugin. 400 401 const char *partial_name = NULL; 402 partial_name = input.GetArgumentAtIndex(opt_arg_pos); 403 404 PlatformSP platform_sp (m_interpreter.GetPlatform (true)); 405 if (platform_sp) 406 { 407 ProcessInstanceInfoList process_infos; 408 ProcessInstanceInfoMatch match_info; 409 if (partial_name) 410 { 411 match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); 412 match_info.SetNameMatchType(eNameMatchStartsWith); 413 } 414 platform_sp->FindProcesses (match_info, process_infos); 415 const uint32_t num_matches = process_infos.GetSize(); 416 if (num_matches > 0) 417 { 418 for (uint32_t i=0; i<num_matches; ++i) 419 { 420 matches.AppendString (process_infos.GetProcessNameAtIndex(i), 421 process_infos.GetProcessNameLengthAtIndex(i)); 422 } 423 } 424 } 425 } 426 427 return false; 428 } 429 430 // Options table: Required for subclasses of Options. 431 432 static OptionDefinition g_option_table[]; 433 434 // Instance variables to hold the values for command options. 435 436 ProcessAttachInfo attach_info; 437 }; 438 439 CommandObjectProcessAttach (CommandInterpreter &interpreter) : 440 CommandObjectParsed (interpreter, 441 "process attach", 442 "Attach to a process.", 443 "process attach <cmd-options>"), 444 m_options (interpreter) 445 { 446 } 447 448 ~CommandObjectProcessAttach () 449 { 450 } 451 452 Options * 453 GetOptions () 454 { 455 return &m_options; 456 } 457 458 protected: 459 bool 460 DoExecute (Args& command, 461 CommandReturnObject &result) 462 { 463 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 464 // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach 465 // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop 466 // ourselves here. 467 468 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 469 StateType state = eStateInvalid; 470 if (process) 471 { 472 state = process->GetState(); 473 if (process->IsAlive() && state != eStateConnected) 474 { 475 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before attaching.\n", 476 process->GetID()); 477 result.SetStatus (eReturnStatusFailed); 478 return false; 479 } 480 } 481 482 if (target == NULL) 483 { 484 // If there isn't a current target create one. 485 TargetSP new_target_sp; 486 FileSpec emptyFileSpec; 487 Error error; 488 489 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 490 emptyFileSpec, 491 NULL, 492 false, 493 NULL, // No platform options 494 new_target_sp); 495 target = new_target_sp.get(); 496 if (target == NULL || error.Fail()) 497 { 498 result.AppendError(error.AsCString("Error creating target")); 499 return false; 500 } 501 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); 502 } 503 504 // Record the old executable module, we want to issue a warning if the process of attaching changed the 505 // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) 506 507 ModuleSP old_exec_module_sp = target->GetExecutableModule(); 508 ArchSpec old_arch_spec = target->GetArchitecture(); 509 510 if (command.GetArgumentCount()) 511 { 512 result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); 513 result.SetStatus (eReturnStatusFailed); 514 } 515 else 516 { 517 if (state != eStateConnected) 518 { 519 const char *plugin_name = m_options.attach_info.GetProcessPluginName(); 520 process = target->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 521 } 522 523 if (process) 524 { 525 Error error; 526 // If no process info was specified, then use the target executable 527 // name as the process to attach to by default 528 if (!m_options.attach_info.ProcessInfoSpecified ()) 529 { 530 if (old_exec_module_sp) 531 m_options.attach_info.GetExecutableFile().GetFilename() = old_exec_module_sp->GetPlatformFileSpec().GetFilename(); 532 533 if (!m_options.attach_info.ProcessInfoSpecified ()) 534 { 535 error.SetErrorString ("no process specified, create a target with a file, or specify the --pid or --name command option"); 536 } 537 } 538 539 if (error.Success()) 540 { 541 error = process->Attach (m_options.attach_info); 542 543 if (error.Success()) 544 { 545 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 546 } 547 else 548 { 549 result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); 550 result.SetStatus (eReturnStatusFailed); 551 return false; 552 } 553 // If we're synchronous, wait for the stopped event and report that. 554 // Otherwise just return. 555 // FIXME: in the async case it will now be possible to get to the command 556 // interpreter with a state eStateAttaching. Make sure we handle that correctly. 557 StateType state = process->WaitForProcessToStop (NULL); 558 559 result.SetDidChangeProcessState (true); 560 561 if (state == eStateStopped) 562 { 563 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 564 result.SetStatus (eReturnStatusSuccessFinishNoResult); 565 } 566 else 567 { 568 result.AppendError ("attach failed: process did not stop (no such process or permission problem?)"); 569 process->Destroy(); 570 result.SetStatus (eReturnStatusFailed); 571 return false; 572 } 573 } 574 } 575 } 576 577 if (result.Succeeded()) 578 { 579 // Okay, we're done. Last step is to warn if the executable module has changed: 580 char new_path[PATH_MAX]; 581 ModuleSP new_exec_module_sp (target->GetExecutableModule()); 582 if (!old_exec_module_sp) 583 { 584 // We might not have a module if we attached to a raw pid... 585 if (new_exec_module_sp) 586 { 587 new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); 588 result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); 589 } 590 } 591 else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) 592 { 593 char old_path[PATH_MAX]; 594 595 old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); 596 new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); 597 598 result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", 599 old_path, new_path); 600 } 601 602 if (!old_arch_spec.IsValid()) 603 { 604 result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetArchitectureName()); 605 } 606 else if (old_arch_spec != target->GetArchitecture()) 607 { 608 result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", 609 old_arch_spec.GetArchitectureName(), target->GetArchitecture().GetArchitectureName()); 610 } 611 612 // This supports the use-case scenario of immediately continuing the process once attached. 613 if (m_options.attach_info.GetContinueOnceAttached()) 614 m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); 615 } 616 return result.Succeeded(); 617 } 618 619 CommandOptions m_options; 620 }; 621 622 623 OptionDefinition 624 CommandObjectProcessAttach::CommandOptions::g_option_table[] = 625 { 626 { LLDB_OPT_SET_ALL, false, "continue",'c', no_argument, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, 627 { LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 628 { LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, 629 { LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, 630 { LLDB_OPT_SET_2, false, "include-existing", 'i', no_argument, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, 631 { LLDB_OPT_SET_2, false, "waitfor", 'w', no_argument, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, 632 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 633 }; 634 635 //------------------------------------------------------------------------- 636 // CommandObjectProcessContinue 637 //------------------------------------------------------------------------- 638 #pragma mark CommandObjectProcessContinue 639 640 class CommandObjectProcessContinue : public CommandObjectParsed 641 { 642 public: 643 644 CommandObjectProcessContinue (CommandInterpreter &interpreter) : 645 CommandObjectParsed (interpreter, 646 "process continue", 647 "Continue execution of all threads in the current process.", 648 "process continue", 649 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 650 { 651 } 652 653 654 ~CommandObjectProcessContinue () 655 { 656 } 657 658 protected: 659 bool 660 DoExecute (Args& command, 661 CommandReturnObject &result) 662 { 663 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 664 bool synchronous_execution = m_interpreter.GetSynchronous (); 665 666 if (process == NULL) 667 { 668 result.AppendError ("no process to continue"); 669 result.SetStatus (eReturnStatusFailed); 670 return false; 671 } 672 673 StateType state = process->GetState(); 674 if (state == eStateStopped) 675 { 676 if (command.GetArgumentCount() != 0) 677 { 678 result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); 679 result.SetStatus (eReturnStatusFailed); 680 return false; 681 } 682 683 const uint32_t num_threads = process->GetThreadList().GetSize(); 684 685 // Set the actions that the threads should each take when resuming 686 for (uint32_t idx=0; idx<num_threads; ++idx) 687 { 688 process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning); 689 } 690 691 Error error(process->Resume()); 692 if (error.Success()) 693 { 694 result.AppendMessageWithFormat ("Process %llu resuming\n", process->GetID()); 695 if (synchronous_execution) 696 { 697 state = process->WaitForProcessToStop (NULL); 698 699 result.SetDidChangeProcessState (true); 700 result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state)); 701 result.SetStatus (eReturnStatusSuccessFinishNoResult); 702 } 703 else 704 { 705 result.SetStatus (eReturnStatusSuccessContinuingNoResult); 706 } 707 } 708 else 709 { 710 result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); 711 result.SetStatus (eReturnStatusFailed); 712 } 713 } 714 else 715 { 716 result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", 717 StateAsCString(state)); 718 result.SetStatus (eReturnStatusFailed); 719 } 720 return result.Succeeded(); 721 } 722 }; 723 724 //------------------------------------------------------------------------- 725 // CommandObjectProcessDetach 726 //------------------------------------------------------------------------- 727 #pragma mark CommandObjectProcessDetach 728 729 class CommandObjectProcessDetach : public CommandObjectParsed 730 { 731 public: 732 733 CommandObjectProcessDetach (CommandInterpreter &interpreter) : 734 CommandObjectParsed (interpreter, 735 "process detach", 736 "Detach from the current process being debugged.", 737 "process detach", 738 eFlagProcessMustBeLaunched) 739 { 740 } 741 742 ~CommandObjectProcessDetach () 743 { 744 } 745 746 protected: 747 bool 748 DoExecute (Args& command, 749 CommandReturnObject &result) 750 { 751 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 752 if (process == NULL) 753 { 754 result.AppendError ("must have a valid process in order to detach"); 755 result.SetStatus (eReturnStatusFailed); 756 return false; 757 } 758 759 result.AppendMessageWithFormat ("Detaching from process %llu\n", process->GetID()); 760 Error error (process->Detach()); 761 if (error.Success()) 762 { 763 result.SetStatus (eReturnStatusSuccessFinishResult); 764 } 765 else 766 { 767 result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); 768 result.SetStatus (eReturnStatusFailed); 769 return false; 770 } 771 return result.Succeeded(); 772 } 773 }; 774 775 //------------------------------------------------------------------------- 776 // CommandObjectProcessConnect 777 //------------------------------------------------------------------------- 778 #pragma mark CommandObjectProcessConnect 779 780 class CommandObjectProcessConnect : public CommandObjectParsed 781 { 782 public: 783 784 class CommandOptions : public Options 785 { 786 public: 787 788 CommandOptions (CommandInterpreter &interpreter) : 789 Options(interpreter) 790 { 791 // Keep default values of all options in one place: OptionParsingStarting () 792 OptionParsingStarting (); 793 } 794 795 ~CommandOptions () 796 { 797 } 798 799 Error 800 SetOptionValue (uint32_t option_idx, const char *option_arg) 801 { 802 Error error; 803 char short_option = (char) m_getopt_table[option_idx].val; 804 805 switch (short_option) 806 { 807 case 'p': 808 plugin_name.assign (option_arg); 809 break; 810 811 default: 812 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 813 break; 814 } 815 return error; 816 } 817 818 void 819 OptionParsingStarting () 820 { 821 plugin_name.clear(); 822 } 823 824 const OptionDefinition* 825 GetDefinitions () 826 { 827 return g_option_table; 828 } 829 830 // Options table: Required for subclasses of Options. 831 832 static OptionDefinition g_option_table[]; 833 834 // Instance variables to hold the values for command options. 835 836 std::string plugin_name; 837 }; 838 839 CommandObjectProcessConnect (CommandInterpreter &interpreter) : 840 CommandObjectParsed (interpreter, 841 "process connect", 842 "Connect to a remote debug service.", 843 "process connect <remote-url>", 844 0), 845 m_options (interpreter) 846 { 847 } 848 849 ~CommandObjectProcessConnect () 850 { 851 } 852 853 854 Options * 855 GetOptions () 856 { 857 return &m_options; 858 } 859 860 protected: 861 bool 862 DoExecute (Args& command, 863 CommandReturnObject &result) 864 { 865 866 TargetSP target_sp (m_interpreter.GetDebugger().GetSelectedTarget()); 867 Error error; 868 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 869 if (process) 870 { 871 if (process->IsAlive()) 872 { 873 result.AppendErrorWithFormat ("Process %llu is currently being debugged, kill the process before connecting.\n", 874 process->GetID()); 875 result.SetStatus (eReturnStatusFailed); 876 return false; 877 } 878 } 879 880 if (!target_sp) 881 { 882 // If there isn't a current target create one. 883 FileSpec emptyFileSpec; 884 885 error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), 886 emptyFileSpec, 887 NULL, 888 false, 889 NULL, // No platform options 890 target_sp); 891 if (!target_sp || error.Fail()) 892 { 893 result.AppendError(error.AsCString("Error creating target")); 894 result.SetStatus (eReturnStatusFailed); 895 return false; 896 } 897 m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target_sp.get()); 898 } 899 900 if (command.GetArgumentCount() == 1) 901 { 902 const char *plugin_name = NULL; 903 if (!m_options.plugin_name.empty()) 904 plugin_name = m_options.plugin_name.c_str(); 905 906 const char *remote_url = command.GetArgumentAtIndex(0); 907 process = target_sp->CreateProcess (m_interpreter.GetDebugger().GetListener(), plugin_name, NULL).get(); 908 909 if (process) 910 { 911 error = process->ConnectRemote (remote_url); 912 913 if (error.Fail()) 914 { 915 result.AppendError(error.AsCString("Remote connect failed")); 916 result.SetStatus (eReturnStatusFailed); 917 target_sp->DeleteCurrentProcess(); 918 return false; 919 } 920 } 921 else 922 { 923 result.AppendErrorWithFormat ("Unable to find process plug-in for remote URL '%s'.\nPlease specify a process plug-in name with the --plugin option, or specify an object file using the \"file\" command.\n", 924 m_cmd_name.c_str()); 925 result.SetStatus (eReturnStatusFailed); 926 } 927 } 928 else 929 { 930 result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", 931 m_cmd_name.c_str(), 932 m_cmd_syntax.c_str()); 933 result.SetStatus (eReturnStatusFailed); 934 } 935 return result.Succeeded(); 936 } 937 938 CommandOptions m_options; 939 }; 940 941 942 OptionDefinition 943 CommandObjectProcessConnect::CommandOptions::g_option_table[] = 944 { 945 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 946 { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } 947 }; 948 949 //------------------------------------------------------------------------- 950 // CommandObjectProcessLoad 951 //------------------------------------------------------------------------- 952 #pragma mark CommandObjectProcessLoad 953 954 class CommandObjectProcessLoad : public CommandObjectParsed 955 { 956 public: 957 958 CommandObjectProcessLoad (CommandInterpreter &interpreter) : 959 CommandObjectParsed (interpreter, 960 "process load", 961 "Load a shared library into the current process.", 962 "process load <filename> [<filename> ...]", 963 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 964 { 965 } 966 967 ~CommandObjectProcessLoad () 968 { 969 } 970 971 protected: 972 bool 973 DoExecute (Args& command, 974 CommandReturnObject &result) 975 { 976 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 977 if (process == NULL) 978 { 979 result.AppendError ("must have a valid process in order to load a shared library"); 980 result.SetStatus (eReturnStatusFailed); 981 return false; 982 } 983 984 const uint32_t argc = command.GetArgumentCount(); 985 986 for (uint32_t i=0; i<argc; ++i) 987 { 988 Error error; 989 const char *image_path = command.GetArgumentAtIndex(i); 990 FileSpec image_spec (image_path, false); 991 process->GetTarget().GetPlatform()->ResolveRemotePath(image_spec, image_spec); 992 uint32_t image_token = process->LoadImage(image_spec, error); 993 if (image_token != LLDB_INVALID_IMAGE_TOKEN) 994 { 995 result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); 996 result.SetStatus (eReturnStatusSuccessFinishResult); 997 } 998 else 999 { 1000 result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); 1001 result.SetStatus (eReturnStatusFailed); 1002 } 1003 } 1004 return result.Succeeded(); 1005 } 1006 }; 1007 1008 1009 //------------------------------------------------------------------------- 1010 // CommandObjectProcessUnload 1011 //------------------------------------------------------------------------- 1012 #pragma mark CommandObjectProcessUnload 1013 1014 class CommandObjectProcessUnload : public CommandObjectParsed 1015 { 1016 public: 1017 1018 CommandObjectProcessUnload (CommandInterpreter &interpreter) : 1019 CommandObjectParsed (interpreter, 1020 "process unload", 1021 "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", 1022 "process unload <index>", 1023 eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) 1024 { 1025 } 1026 1027 ~CommandObjectProcessUnload () 1028 { 1029 } 1030 1031 protected: 1032 bool 1033 DoExecute (Args& command, 1034 CommandReturnObject &result) 1035 { 1036 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1037 if (process == NULL) 1038 { 1039 result.AppendError ("must have a valid process in order to load a shared library"); 1040 result.SetStatus (eReturnStatusFailed); 1041 return false; 1042 } 1043 1044 const uint32_t argc = command.GetArgumentCount(); 1045 1046 for (uint32_t i=0; i<argc; ++i) 1047 { 1048 const char *image_token_cstr = command.GetArgumentAtIndex(i); 1049 uint32_t image_token = Args::StringToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); 1050 if (image_token == LLDB_INVALID_IMAGE_TOKEN) 1051 { 1052 result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); 1053 result.SetStatus (eReturnStatusFailed); 1054 break; 1055 } 1056 else 1057 { 1058 Error error (process->UnloadImage(image_token)); 1059 if (error.Success()) 1060 { 1061 result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); 1062 result.SetStatus (eReturnStatusSuccessFinishResult); 1063 } 1064 else 1065 { 1066 result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); 1067 result.SetStatus (eReturnStatusFailed); 1068 break; 1069 } 1070 } 1071 } 1072 return result.Succeeded(); 1073 } 1074 }; 1075 1076 //------------------------------------------------------------------------- 1077 // CommandObjectProcessSignal 1078 //------------------------------------------------------------------------- 1079 #pragma mark CommandObjectProcessSignal 1080 1081 class CommandObjectProcessSignal : public CommandObjectParsed 1082 { 1083 public: 1084 1085 CommandObjectProcessSignal (CommandInterpreter &interpreter) : 1086 CommandObjectParsed (interpreter, 1087 "process signal", 1088 "Send a UNIX signal to the current process being debugged.", 1089 NULL) 1090 { 1091 CommandArgumentEntry arg; 1092 CommandArgumentData signal_arg; 1093 1094 // Define the first (and only) variant of this arg. 1095 signal_arg.arg_type = eArgTypeUnixSignal; 1096 signal_arg.arg_repetition = eArgRepeatPlain; 1097 1098 // There is only one variant this argument could be; put it into the argument entry. 1099 arg.push_back (signal_arg); 1100 1101 // Push the data for the first argument into the m_arguments vector. 1102 m_arguments.push_back (arg); 1103 } 1104 1105 ~CommandObjectProcessSignal () 1106 { 1107 } 1108 1109 protected: 1110 bool 1111 DoExecute (Args& command, 1112 CommandReturnObject &result) 1113 { 1114 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1115 if (process == NULL) 1116 { 1117 result.AppendError ("no process to signal"); 1118 result.SetStatus (eReturnStatusFailed); 1119 return false; 1120 } 1121 1122 if (command.GetArgumentCount() == 1) 1123 { 1124 int signo = LLDB_INVALID_SIGNAL_NUMBER; 1125 1126 const char *signal_name = command.GetArgumentAtIndex(0); 1127 if (::isxdigit (signal_name[0])) 1128 signo = Args::StringToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); 1129 else 1130 signo = process->GetUnixSignals().GetSignalNumberFromName (signal_name); 1131 1132 if (signo == LLDB_INVALID_SIGNAL_NUMBER) 1133 { 1134 result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); 1135 result.SetStatus (eReturnStatusFailed); 1136 } 1137 else 1138 { 1139 Error error (process->Signal (signo)); 1140 if (error.Success()) 1141 { 1142 result.SetStatus (eReturnStatusSuccessFinishResult); 1143 } 1144 else 1145 { 1146 result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); 1147 result.SetStatus (eReturnStatusFailed); 1148 } 1149 } 1150 } 1151 else 1152 { 1153 result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), 1154 m_cmd_syntax.c_str()); 1155 result.SetStatus (eReturnStatusFailed); 1156 } 1157 return result.Succeeded(); 1158 } 1159 }; 1160 1161 1162 //------------------------------------------------------------------------- 1163 // CommandObjectProcessInterrupt 1164 //------------------------------------------------------------------------- 1165 #pragma mark CommandObjectProcessInterrupt 1166 1167 class CommandObjectProcessInterrupt : public CommandObjectParsed 1168 { 1169 public: 1170 1171 1172 CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : 1173 CommandObjectParsed (interpreter, 1174 "process interrupt", 1175 "Interrupt the current process being debugged.", 1176 "process interrupt", 1177 eFlagProcessMustBeLaunched) 1178 { 1179 } 1180 1181 ~CommandObjectProcessInterrupt () 1182 { 1183 } 1184 1185 protected: 1186 bool 1187 DoExecute (Args& command, 1188 CommandReturnObject &result) 1189 { 1190 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1191 if (process == NULL) 1192 { 1193 result.AppendError ("no process to halt"); 1194 result.SetStatus (eReturnStatusFailed); 1195 return false; 1196 } 1197 1198 if (command.GetArgumentCount() == 0) 1199 { 1200 Error error(process->Halt ()); 1201 if (error.Success()) 1202 { 1203 result.SetStatus (eReturnStatusSuccessFinishResult); 1204 1205 // Maybe we should add a "SuspendThreadPlans so we 1206 // can halt, and keep in place all the current thread plans. 1207 process->GetThreadList().DiscardThreadPlans(); 1208 } 1209 else 1210 { 1211 result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); 1212 result.SetStatus (eReturnStatusFailed); 1213 } 1214 } 1215 else 1216 { 1217 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1218 m_cmd_name.c_str(), 1219 m_cmd_syntax.c_str()); 1220 result.SetStatus (eReturnStatusFailed); 1221 } 1222 return result.Succeeded(); 1223 } 1224 }; 1225 1226 //------------------------------------------------------------------------- 1227 // CommandObjectProcessKill 1228 //------------------------------------------------------------------------- 1229 #pragma mark CommandObjectProcessKill 1230 1231 class CommandObjectProcessKill : public CommandObjectParsed 1232 { 1233 public: 1234 1235 CommandObjectProcessKill (CommandInterpreter &interpreter) : 1236 CommandObjectParsed (interpreter, 1237 "process kill", 1238 "Terminate the current process being debugged.", 1239 "process kill", 1240 eFlagProcessMustBeLaunched) 1241 { 1242 } 1243 1244 ~CommandObjectProcessKill () 1245 { 1246 } 1247 1248 protected: 1249 bool 1250 DoExecute (Args& command, 1251 CommandReturnObject &result) 1252 { 1253 Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); 1254 if (process == NULL) 1255 { 1256 result.AppendError ("no process to kill"); 1257 result.SetStatus (eReturnStatusFailed); 1258 return false; 1259 } 1260 1261 if (command.GetArgumentCount() == 0) 1262 { 1263 Error error (process->Destroy()); 1264 if (error.Success()) 1265 { 1266 result.SetStatus (eReturnStatusSuccessFinishResult); 1267 } 1268 else 1269 { 1270 result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); 1271 result.SetStatus (eReturnStatusFailed); 1272 } 1273 } 1274 else 1275 { 1276 result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", 1277 m_cmd_name.c_str(), 1278 m_cmd_syntax.c_str()); 1279 result.SetStatus (eReturnStatusFailed); 1280 } 1281 return result.Succeeded(); 1282 } 1283 }; 1284 1285 //------------------------------------------------------------------------- 1286 // CommandObjectProcessStatus 1287 //------------------------------------------------------------------------- 1288 #pragma mark CommandObjectProcessStatus 1289 1290 class CommandObjectProcessStatus : public CommandObjectParsed 1291 { 1292 public: 1293 CommandObjectProcessStatus (CommandInterpreter &interpreter) : 1294 CommandObjectParsed (interpreter, 1295 "process status", 1296 "Show the current status and location of executing process.", 1297 "process status", 1298 0) 1299 { 1300 } 1301 1302 ~CommandObjectProcessStatus() 1303 { 1304 } 1305 1306 1307 bool 1308 DoExecute (Args& command, CommandReturnObject &result) 1309 { 1310 Stream &strm = result.GetOutputStream(); 1311 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1312 ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); 1313 Process *process = exe_ctx.GetProcessPtr(); 1314 if (process) 1315 { 1316 const bool only_threads_with_stop_reason = true; 1317 const uint32_t start_frame = 0; 1318 const uint32_t num_frames = 1; 1319 const uint32_t num_frames_with_source = 1; 1320 process->GetStatus(strm); 1321 process->GetThreadStatus (strm, 1322 only_threads_with_stop_reason, 1323 start_frame, 1324 num_frames, 1325 num_frames_with_source); 1326 1327 } 1328 else 1329 { 1330 result.AppendError ("No process."); 1331 result.SetStatus (eReturnStatusFailed); 1332 } 1333 return result.Succeeded(); 1334 } 1335 }; 1336 1337 //------------------------------------------------------------------------- 1338 // CommandObjectProcessHandle 1339 //------------------------------------------------------------------------- 1340 #pragma mark CommandObjectProcessHandle 1341 1342 class CommandObjectProcessHandle : public CommandObjectParsed 1343 { 1344 public: 1345 1346 class CommandOptions : public Options 1347 { 1348 public: 1349 1350 CommandOptions (CommandInterpreter &interpreter) : 1351 Options (interpreter) 1352 { 1353 OptionParsingStarting (); 1354 } 1355 1356 ~CommandOptions () 1357 { 1358 } 1359 1360 Error 1361 SetOptionValue (uint32_t option_idx, const char *option_arg) 1362 { 1363 Error error; 1364 char short_option = (char) m_getopt_table[option_idx].val; 1365 1366 switch (short_option) 1367 { 1368 case 's': 1369 stop = option_arg; 1370 break; 1371 case 'n': 1372 notify = option_arg; 1373 break; 1374 case 'p': 1375 pass = option_arg; 1376 break; 1377 default: 1378 error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); 1379 break; 1380 } 1381 return error; 1382 } 1383 1384 void 1385 OptionParsingStarting () 1386 { 1387 stop.clear(); 1388 notify.clear(); 1389 pass.clear(); 1390 } 1391 1392 const OptionDefinition* 1393 GetDefinitions () 1394 { 1395 return g_option_table; 1396 } 1397 1398 // Options table: Required for subclasses of Options. 1399 1400 static OptionDefinition g_option_table[]; 1401 1402 // Instance variables to hold the values for command options. 1403 1404 std::string stop; 1405 std::string notify; 1406 std::string pass; 1407 }; 1408 1409 1410 CommandObjectProcessHandle (CommandInterpreter &interpreter) : 1411 CommandObjectParsed (interpreter, 1412 "process handle", 1413 "Show or update what the process and debugger should do with various signals received from the OS.", 1414 NULL), 1415 m_options (interpreter) 1416 { 1417 SetHelpLong ("If no signals are specified, update them all. If no update option is specified, list the current values.\n"); 1418 CommandArgumentEntry arg; 1419 CommandArgumentData signal_arg; 1420 1421 signal_arg.arg_type = eArgTypeUnixSignal; 1422 signal_arg.arg_repetition = eArgRepeatStar; 1423 1424 arg.push_back (signal_arg); 1425 1426 m_arguments.push_back (arg); 1427 } 1428 1429 ~CommandObjectProcessHandle () 1430 { 1431 } 1432 1433 Options * 1434 GetOptions () 1435 { 1436 return &m_options; 1437 } 1438 1439 bool 1440 VerifyCommandOptionValue (const std::string &option, int &real_value) 1441 { 1442 bool okay = true; 1443 1444 bool success = false; 1445 bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); 1446 1447 if (success && tmp_value) 1448 real_value = 1; 1449 else if (success && !tmp_value) 1450 real_value = 0; 1451 else 1452 { 1453 // If the value isn't 'true' or 'false', it had better be 0 or 1. 1454 real_value = Args::StringToUInt32 (option.c_str(), 3); 1455 if (real_value != 0 && real_value != 1) 1456 okay = false; 1457 } 1458 1459 return okay; 1460 } 1461 1462 void 1463 PrintSignalHeader (Stream &str) 1464 { 1465 str.Printf ("NAME PASS STOP NOTIFY\n"); 1466 str.Printf ("========== ===== ===== ======\n"); 1467 } 1468 1469 void 1470 PrintSignal (Stream &str, int32_t signo, const char *sig_name, UnixSignals &signals) 1471 { 1472 bool stop; 1473 bool suppress; 1474 bool notify; 1475 1476 str.Printf ("%-10s ", sig_name); 1477 if (signals.GetSignalInfo (signo, suppress, stop, notify)) 1478 { 1479 bool pass = !suppress; 1480 str.Printf ("%s %s %s", 1481 (pass ? "true " : "false"), 1482 (stop ? "true " : "false"), 1483 (notify ? "true " : "false")); 1484 } 1485 str.Printf ("\n"); 1486 } 1487 1488 void 1489 PrintSignalInformation (Stream &str, Args &signal_args, int num_valid_signals, UnixSignals &signals) 1490 { 1491 PrintSignalHeader (str); 1492 1493 if (num_valid_signals > 0) 1494 { 1495 size_t num_args = signal_args.GetArgumentCount(); 1496 for (size_t i = 0; i < num_args; ++i) 1497 { 1498 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1499 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1500 PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals); 1501 } 1502 } 1503 else // Print info for ALL signals 1504 { 1505 int32_t signo = signals.GetFirstSignalNumber(); 1506 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1507 { 1508 PrintSignal (str, signo, signals.GetSignalAsCString (signo), signals); 1509 signo = signals.GetNextSignalNumber (signo); 1510 } 1511 } 1512 } 1513 1514 protected: 1515 bool 1516 DoExecute (Args &signal_args, CommandReturnObject &result) 1517 { 1518 TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); 1519 1520 if (!target_sp) 1521 { 1522 result.AppendError ("No current target;" 1523 " cannot handle signals until you have a valid target and process.\n"); 1524 result.SetStatus (eReturnStatusFailed); 1525 return false; 1526 } 1527 1528 ProcessSP process_sp = target_sp->GetProcessSP(); 1529 1530 if (!process_sp) 1531 { 1532 result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); 1533 result.SetStatus (eReturnStatusFailed); 1534 return false; 1535 } 1536 1537 int stop_action = -1; // -1 means leave the current setting alone 1538 int pass_action = -1; // -1 means leave the current setting alone 1539 int notify_action = -1; // -1 means leave the current setting alone 1540 1541 if (! m_options.stop.empty() 1542 && ! VerifyCommandOptionValue (m_options.stop, stop_action)) 1543 { 1544 result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); 1545 result.SetStatus (eReturnStatusFailed); 1546 return false; 1547 } 1548 1549 if (! m_options.notify.empty() 1550 && ! VerifyCommandOptionValue (m_options.notify, notify_action)) 1551 { 1552 result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); 1553 result.SetStatus (eReturnStatusFailed); 1554 return false; 1555 } 1556 1557 if (! m_options.pass.empty() 1558 && ! VerifyCommandOptionValue (m_options.pass, pass_action)) 1559 { 1560 result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); 1561 result.SetStatus (eReturnStatusFailed); 1562 return false; 1563 } 1564 1565 size_t num_args = signal_args.GetArgumentCount(); 1566 UnixSignals &signals = process_sp->GetUnixSignals(); 1567 int num_signals_set = 0; 1568 1569 if (num_args > 0) 1570 { 1571 for (size_t i = 0; i < num_args; ++i) 1572 { 1573 int32_t signo = signals.GetSignalNumberFromName (signal_args.GetArgumentAtIndex (i)); 1574 if (signo != LLDB_INVALID_SIGNAL_NUMBER) 1575 { 1576 // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees 1577 // the value is either 0 or 1. 1578 if (stop_action != -1) 1579 signals.SetShouldStop (signo, (bool) stop_action); 1580 if (pass_action != -1) 1581 { 1582 bool suppress = ! ((bool) pass_action); 1583 signals.SetShouldSuppress (signo, suppress); 1584 } 1585 if (notify_action != -1) 1586 signals.SetShouldNotify (signo, (bool) notify_action); 1587 ++num_signals_set; 1588 } 1589 else 1590 { 1591 result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); 1592 } 1593 } 1594 } 1595 else 1596 { 1597 // No signal specified, if any command options were specified, update ALL signals. 1598 if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) 1599 { 1600 if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) 1601 { 1602 int32_t signo = signals.GetFirstSignalNumber(); 1603 while (signo != LLDB_INVALID_SIGNAL_NUMBER) 1604 { 1605 if (notify_action != -1) 1606 signals.SetShouldNotify (signo, (bool) notify_action); 1607 if (stop_action != -1) 1608 signals.SetShouldStop (signo, (bool) stop_action); 1609 if (pass_action != -1) 1610 { 1611 bool suppress = ! ((bool) pass_action); 1612 signals.SetShouldSuppress (signo, suppress); 1613 } 1614 signo = signals.GetNextSignalNumber (signo); 1615 } 1616 } 1617 } 1618 } 1619 1620 PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals); 1621 1622 if (num_signals_set > 0) 1623 result.SetStatus (eReturnStatusSuccessFinishNoResult); 1624 else 1625 result.SetStatus (eReturnStatusFailed); 1626 1627 return result.Succeeded(); 1628 } 1629 1630 CommandOptions m_options; 1631 }; 1632 1633 OptionDefinition 1634 CommandObjectProcessHandle::CommandOptions::g_option_table[] = 1635 { 1636 { LLDB_OPT_SET_1, false, "stop", 's', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the process should be stopped if the signal is received." }, 1637 { LLDB_OPT_SET_1, false, "notify", 'n', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the debugger should notify the user if the signal is received." }, 1638 { LLDB_OPT_SET_1, false, "pass", 'p', required_argument, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, 1639 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 1640 }; 1641 1642 //------------------------------------------------------------------------- 1643 // CommandObjectMultiwordProcess 1644 //------------------------------------------------------------------------- 1645 1646 CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : 1647 CommandObjectMultiword (interpreter, 1648 "process", 1649 "A set of commands for operating on a process.", 1650 "process <subcommand> [<subcommand-options>]") 1651 { 1652 LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); 1653 LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); 1654 LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); 1655 LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); 1656 LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); 1657 LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); 1658 LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); 1659 LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); 1660 LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); 1661 LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); 1662 LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); 1663 LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); 1664 } 1665 1666 CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () 1667 { 1668 } 1669 1670